@article{10_4153_CMB_2004_015_4,
     author = {Xia, Jingbo},
     title = {On the {Uniqueness} of {Wave} {Operators} {Associated} with {Non-Trace} {Class} {Perturbations}},
     journal = {Canadian mathematical bulletin},
     pages = {144--151},
     year = {2004},
     volume = {47},
     number = {1},
     doi = {10.4153/CMB-2004-015-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2004-015-4/}
}